diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/010-rt2x00-clear-IV-s-on-start-to-fix-AP-mode-regression.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/010-rt2x00-clear-IV-s-on-start-to-fix-AP-mode-regression.patch | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/010-rt2x00-clear-IV-s-on-start-to-fix-AP-mode-regression.patch b/package/kernel/mac80211/patches/rt2x00/010-rt2x00-clear-IV-s-on-start-to-fix-AP-mode-regression.patch deleted file mode 100644 index 8859c0dd9e..0000000000 --- a/package/kernel/mac80211/patches/rt2x00/010-rt2x00-clear-IV-s-on-start-to-fix-AP-mode-regression.patch +++ /dev/null @@ -1,113 +0,0 @@ -From patchwork Mon Aug 19 11:20:07 2019 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -X-Patchwork-Submitter: Stanislaw Gruszka <sgruszka@redhat.com> -X-Patchwork-Id: 11100685 -X-Patchwork-Delegate: kvalo@adurom.com -Return-Path: <linux-wireless-owner@kernel.org> -From: Stanislaw Gruszka <sgruszka@redhat.com> -To: linux-wireless@vger.kernel.org -Subject: [PATCH 5.3] rt2x00: clear IV's on start to fix AP mode regression -Date: Mon, 19 Aug 2019 13:20:07 +0200 -Message-Id: <1566213607-6723-1-git-send-email-sgruszka@redhat.com> -Sender: linux-wireless-owner@vger.kernel.org -List-ID: <linux-wireless.vger.kernel.org> -X-Mailing-List: linux-wireless@vger.kernel.org - -To do not brake HW restart we should keep initialization vectors data. -I assumed that on start the data is already initialized to zeros, but -that not true on some scenarios and we should clear it. So add -additional flag to check if we are under HW restart and clear IV's -data if we are not. - -Patch fixes AP mode regression. - -Reported-and-tested-by: Emil Karlson <jekarl@iki.fi> -Fixes: 710e6cc1595e ("rt2800: do not nullify initialization vector data") -Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> ---- - drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 9 +++++++++ - drivers/net/wireless/ralink/rt2x00/rt2x00.h | 1 + - drivers/net/wireless/ralink/rt2x00/rt2x00dev.c | 13 ++++++++----- - 3 files changed, 18 insertions(+), 5 deletions(-) - ---- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c -+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c -@@ -6095,6 +6095,15 @@ static int rt2800_init_registers(struct - } - - /* -+ * Clear encryption initialization vectors on start, but keep them -+ * for watchdog reset. Otherwise we will have wrong IVs and not be -+ * able to keep connections after reset. -+ */ -+ if (!test_bit(DEVICE_STATE_RESET, &rt2x00dev->flags)) -+ for (i = 0; i < 256; i++) -+ rt2800_register_write(rt2x00dev, MAC_IVEIV_ENTRY(i), 0); -+ -+ /* - * Clear all beacons - */ - for (i = 0; i < 8; i++) ---- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h -+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h -@@ -658,6 +658,7 @@ enum rt2x00_state_flags { - DEVICE_STATE_ENABLED_RADIO, - DEVICE_STATE_SCANNING, - DEVICE_STATE_FLUSHING, -+ DEVICE_STATE_RESET, - - /* - * Driver configuration ---- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c -+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c -@@ -1256,13 +1256,14 @@ static int rt2x00lib_initialize(struct r - - int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) - { -- int retval; -+ int retval = 0; - - if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) { - /* - * This is special case for ieee80211_restart_hw(), otherwise - * mac80211 never call start() two times in row without stop(); - */ -+ set_bit(DEVICE_STATE_RESET, &rt2x00dev->flags); - rt2x00dev->ops->lib->pre_reset_hw(rt2x00dev); - rt2x00lib_stop(rt2x00dev); - } -@@ -1273,14 +1274,14 @@ int rt2x00lib_start(struct rt2x00_dev *r - */ - retval = rt2x00lib_load_firmware(rt2x00dev); - if (retval) -- return retval; -+ goto out; - - /* - * Initialize the device. - */ - retval = rt2x00lib_initialize(rt2x00dev); - if (retval) -- return retval; -+ goto out; - - rt2x00dev->intf_ap_count = 0; - rt2x00dev->intf_sta_count = 0; -@@ -1289,11 +1290,13 @@ int rt2x00lib_start(struct rt2x00_dev *r - /* Enable the radio */ - retval = rt2x00lib_enable_radio(rt2x00dev); - if (retval) -- return retval; -+ goto out; - - set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); - -- return 0; -+out: -+ clear_bit(DEVICE_STATE_RESET, &rt2x00dev->flags); -+ return retval; - } - - void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) |